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| Number | Title | Issue Date |
| 8159319 | Double-breaking contact system for a low voltage circuit breaker, a molded case circuit breaker comprising the double-breaking contact system, and a method for breaking a circuit A concept of a double-breaking contact system with a rotating contact arm is disclosed. In at least one embodiment, a novel arrangement of fixed conductors that cross over the contact arm is presented. A double-breaking contact system for a low voltage circuit break... | 04/17/2012 |
| 7948336 | Mold cased circuit breaker A mold cased circuit breaker is disclosed that enables a user to easily discern an actually connected state between stationary contactors and movable contactors and forcibly separates a connection therebetween if there arises electrical fault, wherein the circuit br... | 05/24/2011 |
| 7772943 | Design and method for keeping electrical contacts closed during short circuits An electrical contact assembly resists blow-open under conditions of increased current flow. The contact assembly includes parallel conducting surfaces on fixed and moveable conductors that generate forces biasing the contacts together under current flow conditions.... | 08/10/2010 |
| 7646269 | Electrical switching apparatus, and conductor assembly and shunt assembly therefor A shunt assembly is provided for an electrical switching apparatus including a conductor assembly having a load conductor and a movable contact assembly with a number of movable contact arms. The movable contact assembly is movable in response to a fault current. Th... | 01/12/2010 |
| 7391289 | Systems, methods, and device for actuating a circuit breaker Certain exemplary embodiments comprise a device comprising: a trip mechanism adapted to engage an operating mechanism of an alternating current circuit breaker, said trip mechanism comprising: a bi-metal element arranged lengthwise into a first end zone, a central z... | 06/24/2008 |
| 7369022 | Auxiliary switch sub-assembly and electrical switching apparatus employing the same An auxiliary switch sub-assembly is provided for a telecommunication system circuit breaker including a housing having an opening, separable contacts inside the housing, and an operating mechanism operating the separable contacts between open and closed positions. T... | 05/06/2008 |
| 7351927 | Electrical switch, conductor assembly, and independent flexible conductive elements therefor A flexible conductive element is provided for the conductor assembly of an electrical switching apparatus. The conductor assembly includes a load conductor, a movable contact assembly including a number of movable contact arms, movable electrical contacts mounted on... | 04/01/2008 |
| 7342474 | Circuit breaker configured to be remotely operated A circuit breaker configured to be remotely operated is disclosed. The circuit breaker includes a set of main contacts configured to connect between an electrical source and an electrical load, an operating mechanism in operable communication to open and close the m... | 03/11/2008 |
| 7336477 | Electrical switching apparatus and heat sink therefor A heat sink is for an integrally fused low-voltage power air circuit breaker including a line terminal and electrical bus work coupled to a current limiter. The line terminal, electrical bus work, and current limiter contribute to the formation of a thermal dam. The... | 02/26/2008 |
| 7336146 | Moving contact carrier arrangement for a circuit breaker mechanism A circuit breaker mechanism comprises a line terminal, a load terminal and a set of contacts between the terminals. A fixed contact is connected to the line terminal, and a moving contact is connected to the load terminal via a conductive frame and a load sensing el... | 02/26/2008 |
| 7323958 | Multipole circuit breaker with single-pole breaking units Multipole circuit breaker comprising single-pole breaking units in the form of cases with two large side faces and having at least one movable contact which operates in conjunction with at least one stationary contact, an operating mechanism common to a set of break... | 01/29/2008 |
| 7319373 | Electrical switching apparatus and terminal housing therefor An auxiliary switch terminal housing is provided for a telecommunication system circuit breaker including an enclosure, separable contacts inside the enclosure, line and load terminals in electrical communication with the separable contacts, an operating mechanism f... | 01/15/2008 |
| 7317264 | Method and apparatus to independently control contactors in a multiple contactor configuration A method and apparatus to independently control the closing or making of contactors in a modular contactor assembly is disclosed. The apparatus includes a contactor assembly having multiple contactors such that each contactor is separately controlled such that one c... | 01/08/2008 |
| 7301742 | Method and apparatus for accessing and activating accessory functions of electronic circuit breakers An electronic trip unit for a circuit breaker includes a programmed microprocessor and a module plug in removable signal communication with the microprocessor. The module plug includes a program identifier. The microprocessor recognizes the program identifier and ac... | 11/27/2007 |
| 7286340 | Adjustable adapter for mounting electrical switching apparatus and enclosure assembly employing the same An adapter is for mounting an electrical switching apparatus, such as a circuit breaker, on the back panel of an enclosure, such as a switchgear cabinet. The back panel has at least one aperture. The adapter includes a first end portion coupled at or about the apert... | 10/23/2007 |
| 7220933 | Arc quenching device for circuit breakers The present invention specifies an arc quenching device having improved current limitation and reduced heat losses, in the case of which a moving contact piece (31) is not subject to increased erosion and wear. For this purpose, a quenching path according to ... | 05/22/2007 |
| 7221246 | Split rotor system and method with springs A rotor assembly may include first rotor half, a first spring supported with the first rotor half, a second rotor half, and a second spring supported within the second rotor half, wherein the first rotor half and the second rotor half are adjoined to enclose the fir... | 05/22/2007 |
| 7217895 | Electrical switching apparatus contact assembly and movable contact arm therefor A contact assembly for a circuit breaker includes a fixed contact, a movable contact, and a movable contact arm. The movable contact arm includes a first end carrying the movable contact, a second end, and a pivot portion proximate the second end. A moving arm porti... | 05/15/2007 |
| 7202427 | Switch contact arrangement comprising a device for increasing a contact-force acting between switch contacts A switch contact arrangement for a power switch is provided with a device for increasing the contact force acting between switch contacts. The device includes a cavity which is made in a stationary conductive element of the switch contact arrangement in such a manne... | 04/10/2007 |
| 7196434 | Modular contactor assembly having independently controllable contractors The present invention provides an electrical isolation apparatus having independently controllable contactors. The isolation apparatus includes a contactor for each phase or pole of an electrical device as well as each phase or pole of a load. Each contactor is cons... | 03/27/2007 |
| 7190126 | Daylight control system device and method A system and device for and a method of programming and controlling light fixtures is disclosed. A system in accordance with the present invention includes a stationary controller unit that is electrically coupled to the light fixtures. The stationary controller uni... | 03/13/2007 |
| 7189935 | Contact arm apparatus and method of assembly thereof A contact arm assembly having a contact arm module is disclosed. The contact arm module includes a set of contact arms, two side plates, a pivot pin, and a set of springs. Each contact arm includes a pivot hole, two contacts, and two spring holders. The two side pla... | 03/13/2007 |
| 7187258 | Circuit breaker A circuit breaker includes an elongated movable contact having a contact at one end thereof for flowing a current therethrough and the other end rotatably supported with a holder, and a protection cover made of an insulating material for covering and protecting a mo... | 03/06/2007 |
| 7148775 | Contactor assembly for circuit breaker A contactor assembly for a circuit breaker is disclosed. There is provided a contactor assembly, wherein stationary pins fixed to a rotary shaft and supporting one ends of springs and limit pins contacting the upper surface of the movable contactor and supporting th... | 12/12/2006 |
| 7148774 | Contact assembly A circuit breaker contact assembly includes a line conductor having a folded back fixed contact end, a fixed contact mounted on the contact end, and a movable contact arm having an inner edge and first and second ends. A movable contact is mounted on the first end. ... | 12/12/2006 |
| 7145419 | Contactor assembly for a circuit breaker A contactor assembly for a circuit breaker comprises a first spring supporting pin, a cam plate, a second spring supporting plate, a link, and a spring. When a movable contactor is rotated without a rotation axis, a fluctuation of a rotation center of the movable co... | 12/05/2006 |
| 7141751 | Breaker for providing successive trip mechanism based on PTC current-limiting device Disclosed is a breaker for providing successive trip mechanism based on PTC current-limiting device, which includes a first switch having first fixed/movable contact points; a second switch having second fixed/movable contact and connected to the first switch in par... | 11/28/2006 |
| 7138892 | Method and apparatus for soft-fault tolerant circuit interruption In accordance with one embodiment, the present technique provides a circuit interrupter. The exemplary circuit interrupter includes conductive spanner that completes an electrical pathway between first and second electrical conductors. To facilitate a good electrica... | 11/21/2006 |
| 7105764 | Monolithic stationary conductor and current limiting power switch incorporating same A current limiting power switch has a monolithic stationary conductor with a conductor section that mounts fixed contacts that engage moving contacts on moving contact fingers to form a reverse current loop with the contacts closed. A terminal section projects trans... | 09/12/2006 |
| 7102471 | Electrical power breaker with a switching contact arrangement having a current loop A power breaker includes a switching contact arrangement having a current loop in order to allow a force dependent on the current to act on the contact members. For this purpose, sections, which are arranged parallel to one another and such that they are arched and ... | 09/05/2006 |
| 7098763 | Switching housing for an electrical switching device Electrical switching device with a switching housing designed to be fitted with at least one switching polar assembly (80) comprising two arc extinguishing splitters blocks (81,82) located on each part of a contact bridge (83) movable along a ho... | 08/29/2006 |
| 7081596 | Arc-quenching device for circuit breakers having double-break contacts The present invention relates to an arc-quenching device for circuit breakers having double-break contacts for use in low-voltage distribution systems. Provided around a prechamber (41) is a magnetic shield (91) for the purpose of intensifying the magn... | 07/25/2006 |
| 7064284 | Circuit breaker with bumper An improved circuit breaker includes a case, a movable arm, and a bumper retained within a receptacle formed on the case. The bumper is retained in the receptacle by a number of spaced ribs that engage certain portions of the bumper yet permit deformations of other ... | 06/20/2006 |
| 7064636 | Shape memory alloy trip mechanism for arc/ground fault circuit interruption A miniature circuit breaker comprising a non-conductive housing assembly; a pair of separable contacts including a first, fixed contact coupled to said housing assembly and having a terminal extending outside said housing assembly, and a second, movable contact havi... | 06/20/2006 |
| 7057311 | Isolation contactor assembly having independently controllable contactors The present invention provides an electrical isolation apparatus having independently controllable contactors. The isolation apparatus includes a contactor for each phase or pole of an electrical device as well as each phase or pole of a load. Each contactor is cons... | 06/06/2006 |
| 7049910 | Circuit interrupting device with reset lockout and reverse wiring protection and method of manufacture Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of ... | 05/23/2006 |
| 7034642 | Blow open moving contact assembly for electric power switching apparatus with a very high current interruption rating A moving contact assembly for a high-current interruption electric power switching apparatus has an inner carrier for the contact fingers that is rigidly held in a withstand position in an outer carrier by a spring biased cam follower pin engaging a cam profile on t... | 04/25/2006 |
| 7026894 | Method and apparatus for magnetically tripping circuit breakers An apparatus for interrupting an electrical short circuit current in an electrical distribution system having a plurality of phases is disclosed. The apparatus includes a housing, a plurality of separable conduction paths, an operating mechanism in operable communic... | 04/11/2006 |
| 7009129 | Switching device comprising a breaker mechanism A switching device including housing and a breaker mechanism, the latter consisting of a trip lever, a catch, a displaceable contact arm and a deflection shaft that is fixed to the housing. The aim is to generate a constant contact force. To achieve this, the end of... | 03/07/2006 |
| 7005594 | Movable contactor assembly of circuit breaker Disclosed is a movable contactor assembly of a circuit breaker capable of enhancing a current limiting function by maintaining a contact state between a movable contactor and fixed contactors in a closed circuit state, by preventing the separated movable contactor f... | 02/28/2006 |
